#404BB5#404BB5

#404BB5 is a mid, vivid blue. Relative luminance 0.095; OKLCH L 46.7% C 0.166 H 273.6°. Best body text is #FFFFFF at 7.26:1 contrast (WCAG AA passes).

Color values

HEX	#404BB5
RGB	rgb(64, 75, 181)
HSL	hsl(234, 48%, 48%)
HSV	hsv(234, 65%, 71%)
CMYK	cmyk(64.6%, 58.6%, 0%, 29%)
CIE-LAB	lab(36.85, 29.60, -57.69)
CIE-LCH	lch(36.85, 64.84, 297.17°)
OKLab	oklab(46.73% 0.0104 -0.166)
OKLCH	oklch(46.73% 0.166 273.6)
XYZ	xyz(12.9682, 9.4572, 44.8491)
Luminance	0.0946 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404BB5 #B5AA40

analogous

#4085B5 #404BB5 #6F40B5

triadic

#404BB5 #B5404B #4BB540

tetradic

#404BB5 #B54085 #B5AA40 #40B56F

square

#404BB5 #B54085 #B5AA40 #40B56F

split-complementary

#404BB5 #B56F40 #85B540

monochromatic

#20265B #303888 #404BB5 #6872CA #969CDA

Accessibility & contrast

On white

7.26

#404BB5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#404BB5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404BB5

7.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404BB5	#FFFFFF	#000000	##FFFFFF
##404BB5	1.00	7.26	2.89	7.26
#FFFFFF	7.26	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CB9

Deuteranopia (green-blind)

#0052B3

Tritanopia (blue-blind)

#006578

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #404bb5;
/* rgb */ color: rgb(64, 75, 181);
/* oklch */ color: oklch(46.7% 0.166 273.6);

Tailwind

colors: {
  custom: {
    50: '#827dcc',
    500: '#404bb5',
    950: '#000000',
  },
}

SCSS

$custom: #404bb5;
$custom-light: #827dcc;
$custom-dark: #000000;

JSON

{
  "hex": "#404bb5",
  "rgb": {
    "r": 64,
    "g": 75,
    "b": 181
  },
  "hsl": {
    "h": 234.359,
    "s": 47.755,
    "l": 48.039
  },
  "oklch": {
    "l": 0.46728,
    "c": 0.16632,
    "h": 273.6
  },
  "luminance": 0.09458
}

Semantic roles & 50–950 ramp

primary

#404BB5

secondary

#C5C08B

accent

#CB50D7

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0913

muted

#7D7B82

Preview Lab

Preview with #404BB5

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →